French President Emmanuel Macron’s office said it had no comment to make about British Prime Minister Theresa May’s speech on Friday about the state of Brexit negotiations, following a fraught summit in Austria.

May told the European Union that it should come up with an alternative to her Brexit proposals and warned she would never accept a break-up of the United Kingdom, saying negotiations were at an impasse.

“No comment,” an Elysee official told Reuters when asked about May’s statement.